This manual covers the All-Terrain Vehicle (ATV) produced between 2007 and 2010, identified by chassis codes such as YFM350FGH. Renowned for its durability and off-road prowess, the 350 4WD is a capable mid-size utility ATV favored for recreational riding, light farm work, and trail exploration. Key features include a reliable air-cooled, 4-stroke engine, the automatic transmission with engine braking, and the drive system offering selectable 2WD and 4WD. Its robust construction, comfortable ergonomics, and proven performance make it a trusted companion for various outdoor adventures. This comprehensive factory service manual provides detailed guidance for the repair, maintenance, and servicing of your 350 4WD. It covers all essential systems, including the engine, fuel, ignition, transmission, drivetrain, suspension, brakes, and electrical systems. Within its pages, you will find step-by-step procedures for routine maintenance, troubleshooting common issues, performing engine and transmission overhauls, and servicing all major components. This manual is an invaluable resource for owners, mechanics, and technicians seeking to maintain the optimal performance, reliability, and longevity of their vehicle. 🏷️ Basic Information Identification Make: Yamaha Model: Grizzly 350 4WD Model Year: 2007-2010 Category: ATV (All-Terrain Vehicle) Codes Chassis Code Range: YFM350FGH (specific variations may exist) 👋 Introduction Market Position Market Segment: Mid-size utility ATV, popular for recreational riding, light farm work, and trail exploration. Competitive Analysis Competitors: Honda Rancher, Suzuki King Quad 300/300, Polaris Sportsman 330/300, Kawasaki Brute Force 300. Key Features Traction: True 4WD capability with On-Command® drive system for on-the-fly switching between 2WD and 4WD. Transmission: Yamaha's durable Ultramatic® automatic transmission with engine braking. Engine Durability: Proven air-cooled, 4-stroke engine known for reliability and ease of maintenance. Comfort And Ergonomics: Comfortable seating, intuitive controls, and a manageable size for various riders. 📋 Manual Details Coverage Areas Primary Coverage: Repair, maintenance, and service procedures Secondary Coverage: Troubleshooting, diagnostics, and specifications Page Count Estimated Page Count: 300-500 pages (typical for a factory service manual of this scope) Manual Type Manual Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Downloadable (Digital PDF) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, including disassembly, inspection, repair, and reassembly of all internal components (cylinder, piston, crankshaft, camshaft, valves, etc.) Fuel System: Carburetor (Mikuni BSR33), fuel tank, fuel pump, fuel filter, fuel lines, and associated components. Includes jetting information and adjustment procedures. Ignition System: CDI unit, ignition coil, spark plug, wiring, and troubleshooting ignition timing. Transmission: Automatic transmission (Ultramatic®), including torque converter, drive and driven clutches, belt inspection and replacement, gear reduction box, and final drive. Drivetrain: 4WD system, front differential, rear differential, driveshafts, universal joints, and wheel hubs. Suspension: Front independent suspension (A-arms), rear swingarm suspension, shock absorbers, springs, and bearings. Includes adjustment and alignment procedures. Brakes: Front and rear hydraulic disc brakes, brake calipers, master cylinder, brake lines, brake pads, and bleeding procedures. Parking brake mechanism. Electrical System: Battery, starter motor, charging system (stator, regulator/rectifier), lighting (headlights, taillight, brake lights), electrical switches, fuses, and wiring diagrams. Cooling System: Air-cooled engine with oil cooler. Includes oil filter replacement and oil change procedures. Frame And Body: Chassis frame, fenders, body panels, handlebars, seat, racks, and plastics. Includes disassembly and reassembly instructions. Steering: Handlebar steering mechanism, steering column, tie rods, and front wheel knuckle assembly. Includes troubleshooting for play or stiffness. Procedures Included Scheduled Maintenance: Detailed maintenance intervals and procedures for all major systems (oil changes, filter replacements, spark plug checks, drive belt inspection, lubrication points). Troubleshooting: Comprehensive diagnostic charts and troubleshooting guides for common problems and symptoms across all vehicle systems. Engine Repair: Step-by-step instructions for engine rebuilds, including piston ring replacement, valve adjustments, seal replacement, and gasket replacement. Transmission Repair: Procedures for clutch inspection, belt replacement, and servicing of the automatic transmission and final drive components. Electrical Diagnostics: Detailed wiring diagrams and troubleshooting steps for electrical circuits, including battery, charging system, ignition, and lighting. Brake System Service: Brake pad replacement, brake fluid flush and bleed, caliper service, and master cylinder repair. Suspension And Steering Adjustment: Adjusting suspension preload, checking and replacing steering components, and lubricating critical points. Component Disassembly Reassembly: Detailed instructions for removing, inspecting, repairing, and reinstalling all major vehicle components. Technical Depth Depth: Comprehensive: Covers routine maintenance to complete engine and transmission overhauls, including detailed diagnostic procedures and specifications. Diagnostic Level: Advanced diagnostic procedures, including troubleshooting electrical faults and mechanical issues using provided specifications and test procedures. Repair Scope: Full repair scope, enabling users to perform almost any repair or maintenance task on the vehicle. 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Searchability: Searchable text for quick access to specific topics and keywords. Print Quality Print Quality: High-resolution, clear images and text suitable for printing. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC, 2-valve, single-cylinder Displacement: 348cc Bore X...